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I'm assuming that if you are running Stretch 'lite' you are intending to use this as a headless device. Have you tried the instructions HERE>>(raspberrypi.stackexchange.com/questions/10251/…) for setting up the device to boot up into WiFi automatically after imaging the SD card? If none of that is working, then you may have a bad Pi with broken WiFi hardware.
– MrChipsNov 25 '17 at 5:13

@MrChips I've tried that multiple times, and then again after you mentioned it. But I still have nothing.
– Zachary ElkinsNov 25 '17 at 18:11

Zachary - There is a good chance you may have a broken Pi. Do you have access to another board? If so, that may be your next step. Sorry you are having so many problems!
– MrChipsNov 25 '17 at 18:46

@MrChips - I don't know what was up with my pi but after my probably ninth or tenth time reimaging my sd card and going through all the steps of the original tutorial it just decided to work all of the sudden. Very frustrating, but at least it has resolved.
– Zachary ElkinsNov 25 '17 at 18:47

Glad to see it worked for you! Sorry it was such a pain. You may want to watch it a bit though, as it could still be a flaky WiFi connection if it's a hardware issue. Heat, cold, etc. can do funny things to a board that is on the bubble of being bad. Good luck!
– MrChipsNov 25 '17 at 18:53